Table 1. Parameter estimates (with 95% confidence interval) of linear regressions (on the log-scale) linking the species-specific metrics obtained in zoo and free-ranging populations.

	Longevity		Baseline mortality		Onset of senescence		Rate of senescence
	slope	intercept	slope	intercept	slope	intercept	slope	intercept
Males	53 species		51 species		51 species		45 species
	0.330 (0.191; 0.469)	6.432 (4.461; 8.403)	−0.010 (−0.053; 0.033)	0.143 (0.113; 0.174)	0.538 (0.330; 0.746)	2.200 (1.122; 3.279)	0.186 (0.001; 0.372)	0.113 (0.092; 0.135)
Females	58 species		56 species		56 species		48 species
	0.351 (0.246; 0.456)	6.621 (4.410; 8.833)	−0.010 (−0.080; 0.061)	0.115 (0.102; 0.128)	0.327 (0.123; 0.532)	2.413 (0.878; 3.947)	0.005 (−0.178; 0.188)	0.073 (0.055; 0.091)

Estimates were obtained from Linear Models when the phylogenetic signal λ was statistically not different from zero (i.e. for longevity, age at the onset of senescence and rate of senescence) and from Phylogenetic Generalized Least-Squares models when λ statistically differed from zero (for baseline mortality).